FLAT PANEL SPEAKER,申请号EP20040752621-传众专利搜索

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发明名称	FLAT PANEL SPEAKER
摘要
申请公布号	EP1629689(A1)	申请公布日期	2006.03.01
申请号	EP20040752621	申请日期	2004.05.19
申请人	3M INNOVATIVE PROPERTIES COMPANY	发明人	GRAETZ, MICHAEL, L.
分类号	H04R5/02;H04R7/04;(IPC1-7):H04R7/04	主分类号	H04R5/02
代理机构		代理人
主权项
地址

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